Abstraction
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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abstraction | A general representation of something -- of some person or place or event or process. Words, symbols, maps, and models are all examples.
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abstracting | Process of creating abstractions.
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constant | The numeral '5', is an abstraction that represents a single thing, e.g., the value 5.
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variable | The symbol 'X', can be used to represent any number. X is more general than a constant value of 5.
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data abstraction | The practice of organizing and encapsulating certain data into a more general representation. An example would be storing the text 'hello' in a single variable rather than having numerous occurrences of 'hello' in a program
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procedural abstraction | The practice of organizing and encapsulating algorithms in named procedures that can then be invoked by name. An example would be the 'sqrt(x)', square root of x, which encapsulates the algorithm for calculating the square root of x.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
mgarda
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